Hf/Ru Dual-Site Perovskite HER Oxide

Synergistic acidic HER catalysis

Atomic-scale Hf-O-Ru configuration with hydrogen spillover synergy enables proton adsorption on Hf, hydrogen migration via O-bridge, and efficient H2 detachment on Ru, overcoming interfacial transport limits of conventional heterostructured catalysts.

Wang, Yaobin · Lu, Qian · Li, Feng · Guan, Daqin · Bu, Yunfei

Advanced Functional Materials 2023

Advantages

Unique Hf/Ru dual-site synergistic mechanism in acidic HER

Fast hydrogen migration through O-bridge sites

High conductivity and unusual charge redistribution enhance intrinsic activity